Which concept is described in the theory proposed by Hess? A. Continents do not move B. Cool rock punches through the crust C. Trenches are sites or seafloor D. Mid-oceans ridges are sites of seafloor spreading

the tires are rotating at 0.434 rpmlinear speed=45 m/sdiameter=0.550 mradius=0.275 mnow v= rωω= v/rω=45/0.275ω=163.6 rad/sω=163.6 rad/s (1rev/2π rad) (60s/1m)ω=1563 rpm

you get 2.3=1.21*\frac{a}2 or 4.6=1.21a or a=3.802 (b)

explanation: